Question : How long do most people visit Belfast?
Answer : Of course you're not most people, but if you were, you'd stay roughly eight days.
Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at Sep 22nd. As of Sep 18th, it's showing the cheapest ticket sales at $1,149. That is 40% below the average price for this route, so you can spend that extra cash on an adventure rather than the flight.
Question : Is the price you found a good deal?
Answer : Prices for this trip tend to fluctuate much more than other flights from the United States. They can range anywhere from $1,149 to $3,461. Remember, you can save by booking further in advance.